Heath Zenith 7560 Mode D'emploi page 10

1. PROBLEM: Chime does not sound.
A. POSSIBLE CAUSE: Transformer may not be working properly.
A. CORRECTIVE ACTION: Test transformer voltage output with a volt meter. Set volt meter to read A/C voltage. Voltage should
read between 18 - 22 volts A/C on the low voltage side of the transformer when chime is NOT playing. If volt meter reads below
18 volts, replace transformer. Note: Power must be supplied from a 16 Volt AC, 10 Watt or a 16 Volt AC, 15 Watt transformer
(Heath ® Zenith models 122C, 121AC, or 125C).
B. POSSIBLE CAUSE: Push button may not be working properly.
B. CORRECTIVE ACTION: Remove push button that is not working from the door frame. Disconnect wires from terminals and
touch bare wires together. If chime sounds, push button is defective. Replace push button.
C. POSSIBLE CAUSE: Chime may not be working properly.
C. CORRECTIVE ACTION: Disconnect wire from terminal marked "TRANS". While someone presses the push button at front
door, quickly touch the "TRANS" wire to terminal marked "FRONT". You will see a small spark if push button, wiring, and
transformer are operating properly. Repeat the steps for "REAR" terminal and rear push button. If wiring between transformer
and push button(s) checks out properly, replace chime.
2. PROBLEM: Chime sounds but does not play entire tune or "TUNE" button does not work.
POSSIBLE CAUSE: Push button diode is not installed correctly or is not working properly.
CORRECTIVE ACTION: Verify diode is attached securely to the main push button; see Diode Installation Instructions, page 5.
Chime may not function properly if a diode is installed on more than one push button. Note: Some push buttons have a pre-installed
diode. An additional diode should not be installed if the push button has a pre-installed diode. If musical tune still does not sound
completely, replace diode (Type 1N4001-50V-1A, available at local electrical component supplier).
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WIRED TROUBLESHOOTING
207702-02